Hadistio, Ryan Rinaldi, Windi Saputri Simamora, and Abdul Muis. 2024. “Development of Android-Based Smart System for Gingivitis Diagnosis Using Certainty Factor”. Sinkron : Jurnal Dan Penelitian Teknik Informatika 8 (1):556-63. https://doi.org/10.33395/sinkron.v9i1.13361.